FREE AND STUDY GAMES ABOUT FIRE PROTECTION SYS

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FREE AND STUDY GAMES ABOUT FIRE PROTECTION SYS

EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -20 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: Name the extinguishing agent most commonly used by high-rate discharge fire extinguishing systems.

Answer:

Halon (Halongenated hydrocarbon type agents), also known as Freon.Question 2: How does a carbon monoxide detector indicate the presence of this deadly gas?

Answer:

The tan spot on the detector turns gray or black.

Question 3: How can the operation of a photoelectric smoke detector be tested?

Answer:

By actuating a test switch.Question 4: How are Freon bottles protected from excessively high temperatures and how can you tell that this has occurred?

Answer:

A thermal fuse (or blowout disk) will release the agent if the bottle temperature exceeds a certain limit.This blows out a red indicator disk.

Question 5: How is a Freon container checked for proper pressure?

Answer:

A chart must be used to determine the maximum and minimum gauge pressure readings based on the ambient temperature.

Question 6: How is the service life of a discharge cartridge calculated?

Answer:

From the date stamped on the cartridge by the manufacturer.Question 7: Are thermal switches wired in series or in parallel with each other?

Answer:

Parallel Question 8: Briefly describe the components of a thermal switch fire detection system.

Answer:

Temperature sensitive switches that complete a circuit at a specific temperature and trigger a warning.Question 9: What condition is indicated if the yellow disk is missing in a fire extinguishing system?

Answer:

The system has been discharged normally.Question 10: Name the extinguishing agent most commonly used by conventional fire extinguishing systems.

Answer:

Carbon dioxide (CO2).Question 11: Describe the process or mechanism by which a photoelectric smoke detector generates a warning of a possible fire.

Answer:

Smoke particles refract light in the detector unit causing the photoelectric cell to conduct electricity and trigger the alarm.

Question 12: How are the detector units in a double-loop Fenwal system wired?

Answer:

In parallel between two complete loops of wiring.

Question 13: Describe the mechanism by which a Freon bottle is discharged.

Answer:

An electrical signal fires an explosive squib, which ruptures a frangible disk.Question 14: What are the usual locations where a carbon monoxide detector would be installed?

Answer:

In an aircraft cockpit or cabin.Question 15: Briefly describe the components of a Kidde continuous loop fire detection system.

Answer:

A Kidde system has an inconel tube containing one or more wires embedded in a ceramic core whose resistance changes with temperature.Question 16: Briefly describe the components and operation of a Lindberg fire detection system.

Answer:

a stainless steel tube contains an inert gas and a discrete material that absorbs some of the gas. When the tube heats up, some gas is released, raising the pressure in the tube, which activates a pressure switch.

Question 17: Name two types of smoke detection systems used in aircraft.

Answer:

Light refraction (photoelectric) types and ionization types.Question 18: What are the possible effects of kinks and sharp bends in the sensing element(s) of a fire warning system?

Answer:

False fire warnings caused by short circuits.

Question 19: In what way is a thermocouple fire warning system different from a thermal switch system?

Answer:

Thermocouple systems are sensitive to the rate of temperature change, whereas thermal switch systems respond to a specific temperature value.

Question 20: Name the two types of fire extinguishing systems.

Answer:

The conventional system and the high-rate discharge system.